//==========================================================================
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//--------------------------------------------------------------------------


#ifndef _MACROS_H
#define _MACROS_H

extern HANDLE  g_HeapHandle;  // g_HeapHandle is the global handle to the heap

// MemInitializeMacro is a macro to get the handle to the heap
#define MemInitializeMacro(hHeap) (g_HeapHandle = hHeap)

// MemAllocMacro is a macro to allocate dwBytes bytes of memory from the heap
#define MemAllocMacro(dwBytes) (HeapAlloc(g_HeapHandle, HEAP_GENERATE_EXCEPTIONS | HEAP_ZERO_MEMORY, dwBytes))

// MemReAllocMacro is a macro to reallocate dwBytes bytes of memory from the heap
#define MemReAllocMacro(lpMem, dwBytes) (HeapReAlloc(g_HeapHandle, HEAP_GENERATE_EXCEPTIONS | HEAP_ZERO_MEMORY, lpMem, dwBytes))

// MemFreeMacro is a macro to free a memory block allocated from the heap
#define MemFreeMacro(lpMem) (HeapFree(g_HeapHandle, 0, lpMem))

#endif
